Home / 2,927,980.62-4,040,698.77-1,638,787.86

Finding the Fourth Proportional to 2,927,980.62, 4,040,698.77 and 1,638,787.86

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Solution

The fourth proportional to 2,927,980.62, 4,040,698.77 and 1,638,787.86 is: 2,261,575.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,927,980.62 : 4,040,698.77 = 1,638,787.86 : x
  2. Step 2: Convert to fraction form
    2,927,980.62/4,040,698.77 = 1,638,787.86/x
  3. Step 3: Cross multiply
    2,927,980.62x = 4,040,698.77 × 1,638,787.86
  4. Step 4: Simplify right side
    2,927,980.62x = 6,621,848,090,192.93
  5. Step 5: Solve for x
    x = 6,621,848,090,192.93/2,927,980.62
  6. Step 6: Final answer
    x = 2,261,575.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.